Development of Highly Efficient Colloidal Quantum Dot-Polymer Hybrid Tandem Solar Cells

PbS CQDs solar cells have limitations of improving the efficiency due to low open-circuit voltage (Voc) and low absorbance between 600 nm and 900 nm. To solve these problems, PbS CQDs-polymer hybrid tandem solar cell was developed by introducing a low band-gap polymeric photo-active layer, exhibiting high absorbance in the region of 600 nm to 900 nm, which is capable of complementary absorption. Furthermore, PbS CQDs and polymer of the photo-active layers are connected in series so as to maximize the efficiency for increasing the Voc value. When the world’s highest efficiency of PbS CQDs solar cell is achieved by the newly proposed research method, I expect to lead the world industrial market and academia of PbS CQDs solar cells.

Faculty Supervisor:

Ted Sargent

Student:

Partner:

Pohang University of Science and Technology

Discipline:

Engineering

Sector:

Energy and Utilities; Environmental Science and Technology; Nanotechnology

University:

University of Toronto

Program: